package cn.xdf.learn;

import java.util.ArrayList;
import java.util.List;

public class Main {

    public static void main(String[] args) {
	// write your code here


        String str = "hello word";

        System.out.println(str);

        System.out.println(str);

        for (int i = 0;i<100;i++){

            //找到i=50那次
            int j = i+100;

            System.out.println(i);
        }

        List<String> strList = new ArrayList<>();
        strList.add("a");
        strList.add("b");
        strList.add("c");
        strList.add("d");


    }




}
